ITMG 350 Powerpoint Slides
https://www.youtube.com/watch?v=wMB77eJPYs8 (DidUKnow 2016)
https://www.youtube.com/watch?v=QpEFjWbXog0 (DidUKnow 2028)
Other powerpoint slides
Chapter two
Chapter Three
Chapter Four
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http://ochanomizu.dartmouth.edu/tutorial/pivottable/
http://www.exsys.com/demomain.html